Radiator.



J. A. WILSON, Jn'.

RADIATOR.

APPLICATION FILED APB..23. 1909.

982,334. v -PatentedJa.n. 24,1911.-

UNITED STATES PATENT orat on.

JOHN A. WILSON, Jn.,.or BUFFALO, mew "sonic-Assumes. T0 NOYE MAnUrAorUnrNe' COMPANY, OF BUFFALO,NEW YORK, A CORPORATION 9F NEH YORK.

RADIATOR.

Specification of Letters Patent. I Pa,tented Jan, 24 1911,.

Application filed April 23, 1809. Serial No. 491,672.

To all whom it may concern:

Be it known that I, J 01m A. lVILsoN, J12, a citizen of the United States, and residing at Buffalo, in the. county of Erie and State be cooled iscirculated through a plurality of vertical tubes through which the water passes downwardly.

In this class of radiators, as heretofore constructed, the hot'water has usually been admitted to the upper ends "of thetubes and the cooled water withdrawn from the lower ends. thereof, the water being kept in circulation in the radiator and the jacket of the engine with which it is connected by thermal action in a well known manner. In these prior radiators the head of the water was comparatively low which necessitated heating the water to an unduly high temperature in order to cause it to circulatesufliciently fast which excessive heat- -ing maintains the radiator at an objectionably high temperature and also causes the water 'toe'vaporate too rapidly, necessitating too frequent replenishing of the water supply in order to prevent the level of the same' from dropping'below the inlet at the top of the radiator which is commonly known as loosing the water. i

The object of this invention is to provide a radiator which has a head of water of greater height above the inlet so that the water is caused to circulate with sutlicient rapidity without excessive heating of the same, thereby k ping the radiator" cooler and avoiding undue evaporation of the,wa ter and necessitating less frequent replenishing of the same.

In the accompanying drawings Figure l is a front elevation, partly in section, of one form of my improved radiator. Fig. 2 is a ve1'tical seetionof the same.

Similar letters of reference indicate corresponding parts in both views.

A represents a plurality of upright'upper tubes which are preferably arranged in transverse and longitudinal "rows and B represents a plurality of upright lower tubes which are similarly arranged The upper ends of the upper tubes open into the underside'of an-.upper tank or manifold (l which serves to connect the app or ends of the passages in these tubes.

ends of the lower tubes is arranged a lower tank or manifold D into the upper side of which the lower ends of the lower tubes open and which serves to connect the lower t the lower ends of the pasages in these tubes. On its rear side the lower tank is provided with one or more water outlet nipplesd which connect with the return pipes of the Water circulating. system leadin to the water jacket of the en ine, two 0 such outlet nip-f ples being pre erahlyemployed, as shown .in Fig. 1.

Between the upper and lower sets of tubes is arranged anintermed ate or central tank or-manifold E which contains oneor more' diaphragms or partitions F, 'two being prefer-ably employed near opposite ends of the same, as shown in Fig. 1 Thesepartitions divide the interior of the central manifold into a main transfer chamber g which is wide at the bottom and connected centrally at the top, and two inlet chambers f at opposite ends of the'centra'l manifold. Each of the inlet chambers is provided on its rear side with a water inlet nipple e which is adapted to connect with a supply pipe of the water circulatin system leading from the water jacket of the engine.

The upper ends of the'lower tubes 0 on through the bottom of the central manifidld and into the wide lower part of the transfer chamber therein and the lower ends of the central group of upper tubes open at their lower ends through the top of the central manifold into the upper contracted part of the transfer chamber.

The side groups of upper tubes open at their lower ends through the. top of the central manifold, each group communicating with the inlet chamber f at the corresponding end of the central chamber.

The hot water from the engine entering through the inlet nipples first passes into the inlet chambers, thence upwardly through the side groups of upper tubes, thence through the upper manifold, thence downwardly through the central group of upper tubes, thence into the transfer chamber of the cen tral manifold, thence downwardly through ,the lower tubes, thence into the lower manifold and thence out through the lower nipples and nto the return pipes leading to the water jacket of the engine.

As the water passes through the tubes the I tubes, and means connecting the lower ends same is cooled by the air passing between the tubes, this cooiin effect being preferably increased by providing the tubes with recliatiwg strips 71, which are partially corrugated and are penetrated by the tubes inthe usual and well known manner.

By arranging the water inlet or supply [or the tubes at a point between the upper and lower ends of this system of cooling tubes, a greater head of water is maintained in the radiator above the water inlet the pressure of which causes the water to circulate more rapidly Without heatinJ the water i to as high a temperature as has een necessary heretofore, thereby keeping the radiator cooler and reducing the evaporation of water which in turn lengthens the intervals of time for effecting refilling of the radiator with water to compensate for the evaporation.

- The increased headof water in this radiator is obtained without sacrificing any tube area, so that theradiatin surface is practically the same with the a vantage of more rapid circulation, less heatingof the water and retaining the radiator in cooler condition.

I claim as my invention 1. A radi tor comprising a plurality of upper uprig t tubes, a plurality oflower upright tubes, a connection between the upper endsof said upper tubes, means connecting the lower ends of some ofsaid upper 4 tubes and provided with a water inlet, means connecting the lower ends of the other upper tubes with the upper ends of said lower of the lower tubes outlet.

2. A radiator comprising a plurality of and provided with-a Water connected-with the-upper ends of the upper tubes, a lower tank connected with the lower ends of the lower tubes and provided with a water outlet, an intermediate tank connected with the upper ends of the lowertubes .and'

the lower ends ofsome of the-u ,per 'tubesi and an auxiliary tank or manifol 'connecte with the lower ends of other upper tubes and provided with a waterinlet.

3.'A radiator comprisin a plurality of vlower upright tubes, a plum ity of upperup;

right tubes,'an upper tank or manifold con ends of the lower'tubes an'dprovided with a water outlet, an intermediate tankconnected with the upper ends of the lowertubes and the lowere'nds of some of the 1.1 pertubes,

and an auxiliary tank-orgna'nifol arran ed within the'intermediate tank crinani old Witnesses:

HENBY S, Man an;

THEO. L. 'Porr.

'nected with-the upper ends .of the upper tubes, :1 lower tank connected-with the lower.

Hes-.- u 

